Home / 74,921.09-112,381.23-30,547.67

Finding the Fourth Proportional to 74,921.09, 112,381.23 and 30,547.67

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Solution

The fourth proportional to 74,921.09, 112,381.23 and 30,547.67 is: 45,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,921.09 : 112,381.23 = 30,547.67 : x
  2. Step 2: Convert to fraction form
    74,921.09/112,381.23 = 30,547.67/x
  3. Step 3: Cross multiply
    74,921.09x = 112,381.23 × 30,547.67
  4. Step 4: Simplify right side
    74,921.09x = 3,432,984,728.23
  5. Step 5: Solve for x
    x = 3,432,984,728.23/74,921.09
  6. Step 6: Final answer
    x = 45,821.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.